Please send your invented definition of POSSER to emallach at verizon dot net by 9:30 pm US EST on Sat., Jan. 16, a bit under 37 hours from now. Don't Reply to this message without changing your reply's To field, or you'll send your fake to all of us.
If you know what POSSER means, please let me know ASAP the same way. If enough people know it, I'll find another word. (Before someone asks: POSSER is not related to MOSSER, a Scots border thief, which I dealt in Round 3107.)